Modeling the bainite transformation kinetics during isothermal holding and continuous cooling for different carbon concentrations

In this work we develop a bainite model which can describe bainite formation for arbitrary cooling conditions. To investigate the influence of carbon on bainite formation, the model is applied to a set of steels with different carbon concentrations and heat treatments. For the investigated steels the T 0 ′ temperature and the prior austenite grain size are measured and used in the calculation. The redistribution of carbon is considered and the respective parameters are given a carbon dependency. The efforts to get a consistent set of parameters are laid out. The calculations for isothermal bainite formation and bainite formation upon continuous cooling are compared to data from dilatometer and XRD measurements.